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* Performance improvements
* Support for splitting CPU meters into two or four columns
  (thanks to Wim Heirman)
* Switch from PLPA, which is now deprecated, to HWLOC.
* Bring back support for native Linux sched_setaffinity,
  so we don't have to use HWLOC where we don't need to.
* Support for typing in user names and column fields in selection panels.

(thanks to Bin Guo)

(thanks to Vincent Launchbury)

(thanks to Moritz Barsnick)

plus some fixes

(thanks to Sebastian Pipping)

  (thanks to Sean Noonan)
* Meters update in every screen (no longer halting while on Setup, etc.)

(thanks to Jan van Haarst for the report.)
Closes #2865619.

(Fix by Steven Hampson)

  (thanks to Daniel Schuler)

(thanks to Vincent Launchbury)

  (thanks to Rainer Suhm)

* BUGFIX: Correct page size calculation for FreeBSD systems
  (thanks to Andrew Paulsen)
* Allow compilation without PLPA on systems that don't support it
  (thanks to Timothy Redaelli)

(thanks to Thorsten Schifferdecker)

  (thanks by Samuli Suominen)

(thanks to Josh Stone)

(thanks to Wolfgang Frisch)

(thanks to Wolfram Schlich for the report)

contributed by Ian Hands

contributed by Jonathan Sambrook and Benedikt Bohm

clicking column titles (click again to invert order).
Also, add a consolidated IO kbyte/s column.

enabled with the --enable-taskstats flag, which
requires a kernel compiled with taskstats support.
Thanks to Tobias Oetiker!

flag, which requires libncursesw.
Thanks to Sergej Pupykin!

When user threads are hidden, process now shows the
sum of processor usage for all processors. When user
threads are displayed, each thread shows its own
processor usage, including the root thread.
(thanks to Bert Wesarg for the report)
Also, add option to display thread colors differently.